page{
  height: 100%;
  width:100%;
}
.three_but{
  width:750rpx;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  position: absolute;
  top:0;
  left:0;
}
.bottom_box{
 width:100%;
  position: absolute;
  bottom: 0;
  background: #fff;
  z-index:100；
}
.line_height{
  height: 90rpx;
  width:100%;
  line-height: 90rpx;
  text-align: center;
}
.camera{
  border-top: 1px solid #595959;
  border-bottom: 1px solid #595959;
}
.display{
  display: none;
}